Annotations: 2RHF

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HRDC	e2rhfA1	A: alpha arrays	X: HhH/H2TH	H: SAM/DNA-glycosylase	T: SAM domain-like	F: HRDC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.150.80	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00570	HRDC domain (HRDC)	HRDC domain	The HRDC (Helicase and RNase D C-terminal) domain has a putative role in nucleic acid binding. Mutations in the HRDC domain cause human disease. It is interesting to note that the RecQ helicase in Deinococcus radiodurans has three tandem HRDC domains ...	The HRDC (Helicase and RNase D C-terminal) domain has a putative role in nucleic acid binding. Mutations in the HRDC domain cause human disease. It is interesting to note that the RecQ helicase in Deinococcus radiodurans has three tandem HRDC domains [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DNA helicase RecQ	binding organic cyclic compound binding nucleic acid binding hydrolase activity catalytic activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding binding organic cyclic compound binding nucleic acid binding hydrolase activity catalytic activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding ATP-dependent activity, acting on DNA four-way junction helicase activity DNA helicase activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid helicase activity ATP-dependent activity 3'-5' DNA helicase activity cation binding metal ion binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus SOS response cellular response to stress response to stimulus DNA damage response nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus SOS response cellular response to stress response to stimulus DNA damage response response to stress cellular process cellular component organization DNA duplex unwinding organelle organization DNA geometric change chromosome organization DNA conformation change cellular component organization or biogenesis DNA recombination DNA repair	intracellular organelle bacterial nucleoid intracellular anatomical structure organelle intracellular non-membrane-bounded organelle nucleoid cellular anatomical entity non-membrane-bounded organelle cytoplasm chromosome protein-containing complex protein-DNA complex replication fork replisome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006293	DNA helicase, ATP-dependent, RecQ type, bacterial	Family
A	IPR002121	HRDC domain	Domain
A	IPR032284	ATP-dependent DNA helicase RecQ, zinc-binding domain	Domain
A	IPR011545	DEAD/DEAH box helicase domain	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR010997	HRDC-like superfamily	Homologous Superfamily
A	IPR001650	Helicase, C-terminal domain-like	Domain
A	IPR018982	RQC domain	Domain
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR014001	Helicase superfamily 1/2, ATP-binding domain	Domain
A	IPR044876	HRDC domain superfamily	Homologous Superfamily
A	IPR004589	DNA helicase, ATP-dependent, RecQ type	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.